[Resolved] CM ROM no sound from earpiece while call

I flashed cm ROM and then flashed Gapps. After flashing Gapps, I couldn't hear any sound on call. Had to restart and it worked for 2-3 calls and the bug appeared again.
Fix for this
1)Download disable service app
2)Switch to system and find Google play service.
3)scroll down until you find checkinservice
4) disable it and restart.

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